Influence of the np interaction on the beta decay of Pd-94

B.S. Nara Singh, T.S. Brock, R. Wadsworth, H. Grawe, P. Boutachkov, N. Braun, A. Blazhev, Z. Liu, M. Gorska, S. Pietri, D. Rudolph, C. Domingo-Pardo, S.J. Steer, A. Atac, L. Bettermann, L. Caceres, T. Engert, T. Faestermann, F. Farinon, F. FinkeK. Geibel, J. Gerl, R. Gernhaeuser, N. Goel, A. Gottardo, J. Grebosz, C. Hinke, R. Hoischen, G. Ilie, H. Iwasaki, J. Jolie, A. Kaskas, I. Kojouharov, R. Kruecken, N. Kurz, E. Merchan, C. Nociforo, J. Nyberg, M. Pfuetzner, A. Prochazka, Zs. Podolyak, P.H. Regan, P. Reiter, S. Rinta-Antila, C. Scholl, H. Schaffner, P.-A. Soderstrom, N. Warr, H. Weick, H.-J. Wollersheim, P.J. Woods, F. Nowacki

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Abstract

We present results from stopped beam rare isotope spectroscopic investigations at the GSI (RISING) experiment based on the detection of γ-ray transitions following the β decay of 94Pd. A comparison between the measured low-lying level scheme of 94Rh and the prediction from shell-model calculations reveals the important roles of the g7/2 and g9/2 orbitals in explaining the structural features. The low values of the Gamow-Teller strengths B(GT) can be attributed to the influence of the neutron-proton interaction, which gives rise to an increased seniority mixing for the nuclear states, thereby leading to a fragmentation of the strength to several daughter levels. These results provide further strong indications that 94Pd resides in the middle of a structural transition region in the Pd isotopes as the N=Z line is approached.
Original languageEnglish
Article number041301
JournalPhysical Review C
Volume86
Issue number4
DOIs
Publication statusPublished - 11 Oct 2012
Externally publishedYes

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Nara Singh, B. S., Brock, T. S., Wadsworth, R., Grawe, H., Boutachkov, P., Braun, N., ... Nowacki, F. (2012). Influence of the np interaction on the beta decay of Pd-94. Physical Review C, 86(4), [041301]. https://doi.org/10.1103/PhysRevC.86.041301